56.

Answer and Explanation

Your Answer is

Correct Answer is H

Explanation

Item H: it refers to the book The Sun Also Rises in the previous sentence, correct.

Item F: The main-slave conjunction while appears at the beginning of the sentence, and two sets of subject-predicates are required later, so the underlined part should be a subject-verb structure.

G item: Their is a possessive and needs to be followed by a noun.

J item: things refer to unknown.